Results 1 to 10 of about 44,242 (238)
Synthesis and characterization of ring-type and branched polymers including polyethylene glycols by “click” chemistry [PDF]
SN Applied Sciences, 2019 Synthesis of ring-type (or branched) polymers including polyethylene glycols was archived via “click” chemistry of 5,6-diazido-2-benzyl-1H-benzimidazole (Di-N3) [or triazidoacetohydrazide derivative (Tri-N3)] and terminally dipropargyl polyethylene glycols (PEG-dipropargyl) with different molecular weights.
Temel Öztürk +3 more
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Polymer Chemistry, 2020 The commercially relevant synthesis of novel materials with step-growth backbones has been achieved by applying conventional chemistries to the radical telomerisation of divinyl monomers leading to high molecular weight branched polymers.
Savannah R. Cassin +2 more
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Hyperbranched Polymers with High Degrees of Branching and Low Dispersity Values: Pushing the Limits of Thiol–Yne Chemistry [PDF]
Macromolecules, 2016 We propose a versatile approach to the production of hyperbranched polymers with high degrees of branching and low dispersity values (Đ), involving slow monomer addition of a thiol/yne monomer to multifunctional core molecules in the presence of photoinitiator and under UV irradiation.
Cook Alexander B. +3 more
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RSC Advances, 2015 Two series of 3–12 multiarm star polymers and 4-miktoarm star copolymer of butadiene and styrene, in which theMnof arm was higher than 20 kg mol−1, were synthesized with high efficiency (from 85.0% to 96.1%)viaclick chemistry.
Li Ma +7 more
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Efficient enumeration-selection computational strategy for adaptive chemistry
Scientific Reports, 2022 Design problems of finding efficient patterns, adaptation of complex molecules to external environments, affinity of molecules to specific targets, dynamic adaptive behavior of chemical systems, reconstruction of 3D structures from diffraction data are ...
Yachong Guo +2 more
doaj +1 more source
The Thermal degradation of Bisphenol A Polycarbonate in Air [PDF]
, 2005 The thermal degradation of polycarbonate in air was studied as a function of mass loss using TGA/FTIR, GC/MS and LC/MS. In the main degradation region, 480–560 °C, the assigned structures of smaller molecules and linear molecules that evolved in air were
Jang, Bok Nam, Wilkie, Charles A.
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Molar mass and solution conformation of branched alpha(1 - 4), alpha(1 - 6) Glucans. Part I: Glycogens in water [PDF]
, 2008 Solution molar masses and conformations of glycogens from different sources (rabbit, oyster, mussel and bovine) were analysed using sedimentation velocity in the analytical ultracentrifuge, size-exclusion chromatography coupled to multi-angle laser light
Ang, S. +6 more
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Warum sind Enzyme Makromoleküle?
CHIMIA, 1983 The paper is devoted to the question wheter the macromolecular structure is really essential for the chemical and biological qualities of enzymes. Recognizing that high molecular weight compounds are relevant both in nature and in modern technology, the
P.L. Luisi
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Structure-functional activity relationship of β-glucans from the perspective of immunomodulation : a mini-review [PDF]
, 2020 β-Glucans are a heterogeneous group of glucose polymers with a common structure comprising a main chain of β-(1,3) and/or β-(1,4)-glucopyranosyl units, along with side chains with various branches and lengths.
Baruah, Sri Kartik +4 more
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Polybutadiene Cross-Linked With Various Diols – Effect On Thermal Stability [PDF]
, 2000 The relationship between cross-linking and thermal stability as related to polybutadiene is the focus of current research. Cross-linked polybutadienes have been prepared using various diols as the cross-linking agent.
McKinney, Michael A. +2 more
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